TECH 4°

 

FOURTH TECHNOLOGY

ULTRASONIC SENSOR

The student programs the ultrasonic sensor.

⚡ PRESENTATION 

PROBLEM 4TH Grade

Achievement

- The student understands the problem to be solved with his/her project.

 * What is the main problem we are going to solve?

 * What questions do we have about the problem?

 * Who will we help with the solution to the problem?

 * Five possible solutions.

TEMPLATE

Achievement:

- The student identifies and correctly uses a template to guide the construction of a project model.

RECYCLABLE TRASH CAN

Clic on the image to watch an example of the year´s project

REVIEW

PROGRAMMING CODE FOR RECYCLABLE TRASH CAN

☆

1ST - THE CIRCUIT: 

When the ultrasonic sensor detects a hand, the servo motor moves to 90° (open). But if the ultrasonic sensor does not detect anything, the servo motor stay in 0° (close).  

2ND - THE CODE: 

DOES YOUR CIRCUIT WORK?, PERFECT! NOW PASTE THE SERVO MOTOR TO THE BOX WITH HOT SILICONE!. 

OR 👿 ... DO YOU WANT TO BE THE BEST?...

... TRY THIS DIFFERENT THING  👿: (RECYCLABLE TRASH CAN WITH LIGHTS)

Challenge - Difficult ⭐⭐

3RD - THE CIRCUIT: 

In this case, if the ultrasonic sensor detecs a hand, the blue will light turn on and the servo motor moves to 90° (open). But if the ultrasonic sensor don't detecs anything the red light turn on an the servo motor stay in 0 degrees (close).

4TH - THE CODE: 

DOES YOUR CIRCUIT WORK?, PERFECT! NOW PASTE THE SERVO MOTOR TO THE BOX WITH HOT SILICONE!. 

OR 👿👿 ... DO YOU WANT TO BE THE BEST IN THE WORLD?...

Challenge - Difficult ⭐⭐⭐⭐

5TH - THE CIRCUIT: PUT 2 LED LIGHTS , EACH ONE WITH RESISTOR AND CONNECT WITH ARDUINO.

6TH - THE CODE: Create the code to activate a sequence of lights when you turn on the recycling bin (welcome greeting). Then, when the ultrasonic sensor detects a hand, the servomotor will open the door and all the LED lights will turn on. If the ultrasonic sensor does not detect anything, all the LED lights will turn off.